Plant apomixis is rare in Himalayan high-alpine flora

Abstract Gametophytic apomixis is a way of asexual plant reproduction by seeds. It should be advantageous under stressful high altitude or latitude environment where short growing seasons, low temperatures, low pollinator activity or unstable weather may hamper sexual reproduction. However, this hyp...

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Autores principales:	Viktorie Brožová, Petr Koutecký, Jiří Doležal
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/47badee6e1934d1d82d0c50fc8a998bb
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spelling	oai:doaj.org-article:47badee6e1934d1d82d0c50fc8a998bb2021-12-02T15:08:31ZPlant apomixis is rare in Himalayan high-alpine flora10.1038/s41598-019-50907-52045-2322https://doaj.org/article/47badee6e1934d1d82d0c50fc8a998bb2019-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-50907-5https://doaj.org/toc/2045-2322Abstract Gametophytic apomixis is a way of asexual plant reproduction by seeds. It should be advantageous under stressful high altitude or latitude environment where short growing seasons, low temperatures, low pollinator activity or unstable weather may hamper sexual reproduction. However, this hypothesis remains largely untested. Here, we assess the reproductive mode in 257 species belonging to 45 families from the world’s broadest alpine belt (2800–6150 m) in NW Himalayas using flow cytometric seed screen. We found only 12 apomictic species, including several members of Poaceae (Festuca, Poa and Stipa), Rosaceae (Potentilla) and Ranunculaceae (Halerpestes, Ranunculus), which are families typical for high apomict frequency. However, several apomictic species were newly discovered, including the first known apomictic species from the family Biebersteiniaceae (Biebersteinia odora), and first apomicts from the genera Stipa (Stipa splendens) and Halerpestes (Halerpestes lancifolia). Apomicts showed no preference for higher elevations, even in these extreme Himalayan alpine habitats. Additional trait-based analyses revealed that apomicts differed from sexuals in comprising more rhizomatous graminoids and forbs, higher soil moisture demands, sharing the syndrome of dominant species with broad geographical and elevation ranges typical for the late-successional habitats. Apomicts differ from non-apomicts in greater ability of clonal propagation and preference for wetter, more productive habitats.Viktorie BrožováPetr KouteckýJiří DoležalNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-12 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Viktorie Brožová Petr Koutecký Jiří Doležal Plant apomixis is rare in Himalayan high-alpine flora
description	Abstract Gametophytic apomixis is a way of asexual plant reproduction by seeds. It should be advantageous under stressful high altitude or latitude environment where short growing seasons, low temperatures, low pollinator activity or unstable weather may hamper sexual reproduction. However, this hypothesis remains largely untested. Here, we assess the reproductive mode in 257 species belonging to 45 families from the world’s broadest alpine belt (2800–6150 m) in NW Himalayas using flow cytometric seed screen. We found only 12 apomictic species, including several members of Poaceae (Festuca, Poa and Stipa), Rosaceae (Potentilla) and Ranunculaceae (Halerpestes, Ranunculus), which are families typical for high apomict frequency. However, several apomictic species were newly discovered, including the first known apomictic species from the family Biebersteiniaceae (Biebersteinia odora), and first apomicts from the genera Stipa (Stipa splendens) and Halerpestes (Halerpestes lancifolia). Apomicts showed no preference for higher elevations, even in these extreme Himalayan alpine habitats. Additional trait-based analyses revealed that apomicts differed from sexuals in comprising more rhizomatous graminoids and forbs, higher soil moisture demands, sharing the syndrome of dominant species with broad geographical and elevation ranges typical for the late-successional habitats. Apomicts differ from non-apomicts in greater ability of clonal propagation and preference for wetter, more productive habitats.
format	article
author	Viktorie Brožová Petr Koutecký Jiří Doležal
author_facet	Viktorie Brožová Petr Koutecký Jiří Doležal
author_sort	Viktorie Brožová
title	Plant apomixis is rare in Himalayan high-alpine flora
title_short	Plant apomixis is rare in Himalayan high-alpine flora
title_full	Plant apomixis is rare in Himalayan high-alpine flora
title_fullStr	Plant apomixis is rare in Himalayan high-alpine flora
title_full_unstemmed	Plant apomixis is rare in Himalayan high-alpine flora
title_sort	plant apomixis is rare in himalayan high-alpine flora
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/47badee6e1934d1d82d0c50fc8a998bb
work_keys_str_mv	AT viktoriebrozova plantapomixisisrareinhimalayanhighalpineflora AT petrkoutecky plantapomixisisrareinhimalayanhighalpineflora AT jiridolezal plantapomixisisrareinhimalayanhighalpineflora
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Plant apomixis is rare in Himalayan high-alpine flora

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